摘要
本文介绍了一种适用于北斗导航接收机的CMOS宽带射频放大器,带宽设计在1.1-1.7GHz。放大器采用三级放大结构,第一级采用源极电感负反馈结构,在输入端加入了宽带匹配网络来扩展带宽;第二级提供增益同时实现单端转差分;第三级采用共源放大器。在放大器的最后加入了源级跟随器,保证输出阻抗为50Ohm,便于输出测试。采用TSMC 55nm CMOS工艺,电路已经流片验证,测试结果表明,噪声系数为4.2d B,S21大于40d B,S11小于-10d B,2.5V电源供电下功耗为30m W。
This paper presents a broadband CMOS RF amplifier for Beidou Navigation Receiver,the amplifier bandwidth is design from 1.1 to 1.7GHz. This amplifier have three stage, the first stage adopts the source degeneration structure with a bandpass filter at the input to make wideband impedance match. The second stage has single_ended input and differential output and provides more gain. The third stage is a common source amplifier. The amplifier have a source follower to make the output impedance match to 500hm convenient for test work. Implemented in TSMC 55nm CMOS process, and the test results shows that： noise figure is 4.2dB. S21 greater than 40dB, S11 is less than -10dB. The power consumption is 30mW with the power supply is 2.5V.
作者
郭锐
GUO Rui(No.38th Research Institute, China Electronic Technology Group Corporatio)
出处
《中国集成电路》
2016年第11期37-40,共4页
China lntegrated Circuit
